After Puck, a mischievous fairy in English folklore who is also a character in Shakespeare's A Midsummer Night's Dream, equivalent to puck + -ish.
puckish (comparative more puckish, superlative most puckish)
- mischievous; excessively playful.
- Wolfowitz spoke softly to Yasa, who evidently had no idea who he was but responded with a puckish smile. - The New Yorker, The Next Crusade by John Cassidy, 09/04/2007